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  2. Platinum coin - Wikipedia

    en.wikipedia.org/wiki/Platinum_coin

    Platinum coins are a form of currency. ... The obverse is the 1812 Pattern 9 Pence Bank Token (S3773A), and reverse is the farthing of 1825. George III had died in ...

  3. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Platinum: The Russian 3, 6, and 12 ruble coins of Nicholas I, issued 1828–1845, were the world's only circulating platinum coins. Numerous bullion coins have been issued. Tin: Portuguese Malacca 1521–1557 bastardo; Malaysia tin hat money; Great Britain farthing and halfpenny 1684–1692; Thailand satangs from the 1940s. Zinc

  4. Platinum coins of the Russian Empire - Wikipedia

    en.wikipedia.org/wiki/Platinum_coins_of_the...

    Minters used the same forms for the platinum and traditional silver coins, but platinum is twice as heavy as silver, [10] and it was approximately 6 times more expensive than silver at the time. The platinum three ruble coin had the same size as the silver 25 kopek (0.25 ruble) coin; it weighed twice as much and was thus valued 12 times higher.

  5. Platinum as an investment - Wikipedia

    en.wikipedia.org/wiki/Platinum_as_an_investment

    Platinum is traded in the spot market with the code "XPT". When settled in United States dollars, the code is "XPTUSD". As the cost of platinum per ounce fell, the cost per ounce for other metals in the platinum group - especially palladium - rose strongly. As of November 2022, palladium sits at around US$1900 per ounce, compared to US$980 for ...

  6. Could These 8 Metro Tokens Be Worth a Lot of Money? - AOL

    www.aol.com/could-8-metro-tokens-worth-113008637...

    This is a 1960, 16 mm one-fare token, according to Numista. Honolulu Rapid Transit Co. Token (1924) Value: Listed at $59, according to a Mercari vendor. This is a zinc, 16.5 mm token, according to ...

  7. Bi-metallic coin - Wikipedia

    en.wikipedia.org/wiki/Bi-metallic_coin

    For example, the only bi-metallic coin issued by the United States is the $10 Library of Congress commemorative, made of a gold ring around a platinum center. They are used primarily as a way of securing against coin counterfeiting .

  8. Noble (Manx coin) - Wikipedia

    en.wikipedia.org/wiki/Noble_(Manx_coin)

    A one-quarter ounce bimetallic coin, ring made of gold with the center platinum, was minted in 1995. A one-ounce bimetallic coin, ring of silver with a center of gold, was produced in 2009. A one-ounce palladium coin was issued in 2012. There were 26, five-ounce platinum coins minted in 1986 and another 15 coins in 1988.

  9. Trillion-dollar coin - Wikipedia

    en.wikipedia.org/wiki/Trillion-dollar_coin

    Artist's concept of a trillion-dollar coin, featuring a similar obverse design to the reverse of the presidential dollar series.. The trillion-dollar coin is a concept that emerged during the United States debt-ceiling crisis of 2011 as a proposed way to bypass any necessity for the United States Congress to raise the country's borrowing limit, through the minting of very high-value platinum ...